Sure, I agree with that, it likely will decline in relevance with more and more transfers, but it also could be that the portal "evens out", and maybe the programs that recruit well also win in the portal. That could be interesting to watch.
UGA recruits well, but doesn't do exceptionally well in the portal.
The other factor is getting and keeping the players you really need as opposed to some 5 star who lacks effort or is at a position where you are loaded.